# US 6,296,149 B1 · Monomer delivery device for bone cement delivery system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 6,296,149 B1 - Document ID: US6296149B1 - Status: Granted - Kind: B1 - Application number: 09/293,396 - Filed: 1999-04-16 - Granted: 2001-10-02 - Earliest claimed: 1999-04-16 - Assignees: DePuy Orthopaedics, Inc. - Inventors: Jack F. Long - Web page: https://patentgrep.com/patent/US6296149B1 ## CPC - A61B 17/8833: {Osteosynthesis tools specially adapted for handling bone cement or fluid fillers; Means for supplying bone cement or fluid fillers to introducing tools, e.g. cartridge handling means} - B01F 35/713: {comprising breaking packages or parts thereof, e.g. piercing or opening sealing elements between compartments or cartridges (containers or packages per se B65D)} - A61B 17/8827: {with filtering, degassing, venting or pressure relief means} - A61B 2017/8838: {for mixing bone cement or fluid fillers} - A61B 2050/002: {having adhesive means, e.g. an adhesive strip} - A61B 2050/0054: {about the central longitudinal axis perpendicular to the lid plane} - A61B 2050/0066: {with additional sealing means, e.g. O-ring} - A61B 2050/0083: {Snap connection} - A61B 2050/3008: {having multiple compartments} - A61F 2250/0071: breakable or frangible - B01F 33/5011: {portable during use, e.g. hand-held} - B01F 2101/20: Mixing of ingredients for bone cement - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - B01F: MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING (mixing paints B44D3/06) - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) ## Abstract A monomer delivery device for a bone cement delivery system having a sealed body that has and a chamber sized to receive an ampule of monomer, a collar attached to the body having a blade configured to sever the ampule and a spout attached to the collar to expel the monomer. ## Claims ### Claim 1 A device for breaking an ampule of monomer in a sealed structure and dispensing monomer, the device comprising: a body providing a chamber for receiving an ampule of monomer, and a spout for dispensing monomer from the ampule; and a collar rotatably attached to the body having a blade attached within the collar and configured to sever the ampule, wherein rotation of the collar relative to the body causes the blade to contact and sever the ampule. ### Claim 2 (depends on 1) The monomer dispensing device of claim 1, wherein the body provides a plurality of chambers sized to receive a plurality of ampules of monomer. ### Claim 3 (depends on 1) The monomer dispensing device of claim 1, further comprising a valve attached to the spout, the valve having a valve closure that allows monomer to flow out of the valve when the closure is disengaged, and prevents monomer from flowing out of the valve when the closure is engaged. ### Claim 4 (depends on 1) The monomer dispensing device of claim 1, further comprising a funnel attached to the collar and wherein the spout attaches to the funnel which attaches to the collar. ### Claim 5 (depends on 4) The monomer dispensing device of claim 4, further comprising a screen fitted between the collar and the funnel, and having a screen mesh sized to allow monomer to pass from the collar to the funnel yet to prevent particles of the severed ampule from passing through the mesh. ### Claim 6 A device for breaking an ampule monomer in a sealed structure and dispensing monomer, the device comprising: a body providing a chamber for receiving an ampule of monomer, and a spout for dispensing monomer from the ampule; and a collar attached to the body having a blade attached within the collar and configured to sever the ampule, wherein the body provides a plurality of chambers sized to receive a plurality of ampules of monomer, and wherein the collar is rotatable relative to the body and comprises a plurality of blades. ### Claim 7 (depends on 6) The monomer dispensing device of claim 6, wherein the plurality of blades comprises an alternating half blade and full blade. ### Claim 8 A device for breaking an ampule of monomer in a sealed structure and dispensing monomer, the device comprising: a body providing a chamber for receiving an ampule of monomer, and a spout for dispensing monomer from the ampule; a collar attached to the body having a blade attached within the collar and configured to sever the ampule; and a flange fitted on the body between the body and the collar creating a rotary seal between the body and the collar. ### Claim 9 A device for dispensing monomer from an ampule having an ampule cap, the device comprising: a cylindrical body having a longitudinal axis and a longitudinal chamber defining a load end and a cap end and disposed about the axis, the chamber for receiving an ampule of monomer from the load end and where an aperture is disposed through the cap end through which the ampule cap extends; a collar mounted on the cap end to rotate about the axis, the collar having portions thereof engageable with the ampule cap when the collar is rotated, and the collar being pivotally attached to the cap end of the body and positioned to receive the ampule cap extended through the aperture, and further the collar has a blade configured to sever the ampule cap when the collar is rotated; a post positioned inside the chamber abutting the ampule thereby securing the ampule within the chamber; an end cap attached to the load end of the body and having a post stop limiting movement of the post; a funnel fitted on the collar opposite the body such that as the blade from the collar severs the ampule cap, monomer is released from the ampule and collects in the funnel; a screen, placed between the collar and the funnel preventing particles from the severed ampule cap from traveling past the collar; and a spout attached to the funnel that expels collected monomer. ### Claim 10 (depends on 9) The monomer dispensing device of claim 9, wherein the body provides a plurality of chambers sized to receive a plurality of ampules of monomer. ### Claim 11 (depends on 10) The monomer dispensing device of claim 10, wherein the collar comprises a plurality of blades. ### Claim 12 (depends on 11) The monomer dispensing device of claim 11, wherein the plurality of blades comprises an alternating half blade and full blade. ### Claim 13 (depends on 9) The monomer dispensing device of claim 9, further comprising a valve attached to the spout, the valve having a valve closure that allows monomer to flow out of the valve when the closure is disengaged, and prevents the monomer from flowing out of the valve hole when the closure is engaged. ### Claim 14 (depends on 13) The monomer dispensing device of claim 13, further comprising a luer lock configured to attach to the valve to mate with a mixing apparatus providing a seal between the monomer dispenser and the mixing apparatus, and preventing toxic vapors from escaping the dispensing device. ### Claim 15 A monomer dispensing device, comprising: a body defining a chamber for receiving at least a part of an ampule of monomer; and a collar movably attached to the body and defining an interior collar space, the collar having at least one blade located within the interior collar space, wherein (i) the ampule of monomer has an end cap which extends into the interior collar space when the ampule of monomer is located in the chamber of the body, and (ii) movement of the collar relative to the body causes the at least one blade to contact the end cap within the interior collar space thereby severing the ampule. ### Claim 16 (depends on 15) The monomer dispensing device of claim 15, further comprising a funnel attached to the collar and operable to collect monomer released from the ampule after the ampule is severed. ### Claim 17 (depends on 16) The monomer dispensing device of claim 16, further comprising a screen positioned between the collar and the funnel and operable to prevent ampule particles from advancing from the collar to the funnel. ### Claim 18 (depends on 17) The monomer dispensing device of claim 17, wherein said funnel includes a spout through which monomer may advance. ### Claim 19 A monomer dispensing device, comprising: a body defining a chamber for receiving at least a part of an ampule of monomer; and a collar rotatably attached to the body and defining an interior collar space, the collar having at least one blade located within the interior collar space, wherein (i) the ampule of monomer has an end cap which extends into the interior collar space when the ampule of monomer is located in the chamber of the body, and (ii) rotation of the collar relative to the body causes the at least one blade to contact the end cap within the interior collar space thereby severing the ampule; a funnel attached to the collar and operable to collect monomer released from the ampule after the ampule is severed; and a screen positioned between the collar and the funnel and operable to prevent ampule particles from advancing from the collar to the funnel. ### Claim 20 (depends on 19) The monomer dispensing device of claim 19, wherein said funnel includes a spout through which monomer may advance.